Food-chopper



Patented May 30; I899. L. T. SNOW.

FOOD CHOPPER.

(Application filed Mar. 9, 1899.)

(No Model.)

UNITED STATE PATENT OFFICE;

LEVI SNOW, OF NEW" HAVEN, CONNECTICUT.

FOOD-CHO-PPE R.

SPECIFICATION forming-part of Letters latent No. 626,212, dated May-30. I899. Applicatioii' filed March 9, 1899- Serial No." 708,347., (No model.)

To all whom it nuty concern.- 7

Be it known that I, LEVI'T. SNOW, of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in Food-Choppers; andIdo hereby declare the following, when taken in connection wit-h the accompanying drawings and the letters of reference marked thereon, to be afull, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure], a view in side elevation of oneform which a food chopper constructed in accordance with my invention may assume; Fig. tral section; Fig. 3, a view in elevation showing the outer end of the case; Fig. 4, a broken view, in vertical section, showing the bearings provided for the inner end of the screw; Fig. 5, a detached perspective view of the bearingwasher. a

My in ventionrelates to an improvement in that class of food-choppers in which the material to be chopped is thrown into a case upon a forcing-screw, which forces it into position to be acted upon by the cutting instrumentalities of the device, the object of my pres- I cut invention being to produce a simple, compact,'and convenient device constructed with particular reference to provision for taking the end thrust of the forcing-screw.

With these ends in view myinvention consists in the combination in a food-chopper,

with a case having an opening in its rear and forward ends, of a forcing-screw adapted to be entered into and removed from the case through the said rear opening, one of the said parts being formed with an annular bearingshoulder and the other with a coacting seat for receiving the forward thrust upon the screw when the same is at work, a cuttercoupled with the outer end of the screw and having bearing upon the outer face offthe outer end of the case, andan adjusting instrumntality. applied to the outer end of the screw for drawing the same forward in the case and forcing the cutter rearward to a bearing, whereby the end-thrust bearings-of the screw are located the case.

My invention further consists in certain details of construction and combinations of at the opposite-ends of 2, a broken viewthereof in vertical cenparts, as will be hereinafter described, and pointed out in the claims.

In carrying out my invention, as herein shown, I form an annular recess A in the outer face'of the inner end of the horizon tally-arranged cylindrical case A of the chopper, the said recess A being larger in'diameter than and concentric with the opening A, formed in thesaid end of the said case for the introduction and removal of the forcingscrew B, than 'which the opening is a trifle larger in diameter. As the result of the construction described, an annular seat A lo cated in a vertical plane,'is formed between the recess A and the opening A this seat being in fact the bottom of the recess A. It is designed that the said seat shall take the forward endwise thrust of the forcing-screw B, which is thereto for1ned at its inner end with an annular shoulder B, which is a'shade smaller in diameter than the diameter of the recessA. arranged to have its inner face bear directly This shoulder may, if desired, be

upon the seat A but by preference I supplement the shoulder by a washer D, preferably made of phosphor-bronze, nickel-bronze, or

.some other equivalent antifriction metal or composition. When this washer is employed,

its inner face will bear directly upon the seat A against which it willbe held by the inner face of the shoulder B. v The lateral support for the inner end of the forcing-screw may be afiorded by the edge of the said shoulder B of the forcing-screw or by the shoulder B thereof, or by both shoulders, the shoulder B having bearing upon the walls of the opening A As to the shoulder B it may be mentioned that it is formed upon the inner end of the thread of the forcing-screw and provides for the reception of the washer D when the same is employed, all as clearly shown in Fig. 4:. If desired, the inner end of the forcing-screw may be formed with a shoulder larger'than itself in diameter and adapted to bear upon a seat formed upon the outer face of the inner end of the case without recessing the same. v-

As herein shown, the outer end of the screw 13 is provided with a threaded stem E, which carries the thumb-nut F, which is screwed down upon the disk-like cutter G, which is coupled with the outer end of the screw, so

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E, but also fits over the projecting outer end of a hub B formed upon the outer end of the forcingscrew and hearing within the large circular opening H, formed in the outer end of the case. It will be readily understood that; by turning the thumb-nut F down upon the cutter G the cuttingfingers G thereof are drawn into close contact with the 'outer face of the outer end of the case A, with the effect of drawing the entire forcing-screw B- outward, so as to firmly seat the inner face of the washer D against the seat A, located at theinner end of the case. The thumb-nut F may thus be utilized in taking up wear and in maintaining the end-thrust bearin gs of the screw inright adjustment. I do not, however, limit myself to any particular construction for the outer end of the forcing-screw, for the outer end of the case, for the cutter, or

for the adjusting instrumentality, the onlyrequirement being that an externallyarranged cntter with a bearing upon the outer face of the outer end of the case shall be em: ployed in conjunction with an adjusting instrumentality, whereby the screw .may be drawn forward and the cutter forced rearward, as required.

It will be understood that by means of my invention the end thrust bearings of the cutter arelocated at its ends, whereby easy running of the device is secured and cramping avoided. By my invention, also, Ifam readily enabled to take up any wear that may occur.

In view of the modifications suggested and of others which may obviously be made I would have it understood that I do not limit myself to the exact construction shown, but hold myself'at liberty to -make-such'varia- A tionstheret'rom as fairly fall within the spirit and scope of my invention.

I do not in this case limit myself to the particular construction, combination, and arrangement ofcutting and holdingdevices at the outer end of the case and forcer, as such construction may be modified, one of the rnodifiedforms of such construction being shown, described, and claimed in an .application pending herewith, filed May 4, 1899,

Serial No. 715,546.

Having described my invention, what I claim as new, and desire to secure by Letters- Patent, is-- I. In a food-chopper, the combination with a case having an opening in its rear end, of

a. forcing-screw adaptedto be entered into and removed from the case through the said opening, one of the said parts being formed with an annular bearing-shoulder for receiving the forward thrust upon the screw when the same is at work, a cutter coupled with the outer end of the screw and having hearing upon the outer face of the outer end of the case, and an adjusting instrumentality applied to the outer end of the screw for drawing the same forward in the case and forcing the cutter rearward to a bearing, whereby the end-thrust bearings of the screw are 10- cated'at the opposite ends of the case.

2. In a food-chopper, the combination with a case having the outer face of its inner end formed with an annular recess larger in diameter than, and concentric with, the annular forcing-screw opening formed in the said end of the case, the bottom of the said recess forming a bearing-seat; of a forcing-screwprovided at its inner end with an annular shoulder to coact with the said seat and take the forward endwise thrust of the screw,a cutter connected with the outer end of the screw and bearing upon the outer face of the outer end of the case, and an adjusting instrumentality applied to the outer end of the screw for maintaining the shoulder at the inner end thereof upon thesaid seat, and for forcing the cutter rearward-and maintaining it .in engagement with the outer endof the case.

3. In a food-chopper, the'combination' with a case having an opening in its rear end, and

a recess concentric with and larger than the said opening, entering the case from the outer face thereof and forming a bearing-seat located ina vertical plane; of a forcing-screw adapted to be entered. into and removed from the case-through the said opening, and provided at its rear end with a shoulder entering the said recess, a washer located upon the screw in position to coact with the said seat against which it is held by the said shoulder,'a cutter coupled with the outer end of the forcing-screw and having a bearing upon the outer face of the outer end of the case with which it coacts for cutting the food, and an adjusting instrnmentality connected with the outer end of the screw, and bearing upon the cutter, for forcing the same rearward against the case, and for drawing the screw forward to seat the said washer upon the said bearing-seat, whereby the end-thrust bearings ot-the-screw are'located atthe opposite ends of the case.-

In testimony whereof I have signed this specification in the presence of two subscrib- 

